I don't have any of this mini-trezor devices myself so I can't confirm and be totally sure about this, and who knows what could happen after they stopped creating this devices.
I would not suggest using this devices as firmware is outdated, but I would be interested to hear if someone from bitcointalk forum owns them as collectible.
Honestly, I would suggest anyone not to buy any Trezor wallets until they add open source secure element and fix issues they have (they are working on this).
I would never suggest ledger because they are closed source and they have countless issues with their devices, especially nono x.
Buying good used laptop and using it only offline for crypto wallets or with Tails OS is a good alternative, and you won't leak your data to crypto scammers.